Specifications - St Vrain Creek - W9128F25B0004.pdf

SPECIFICATIONS

(For Construction Contract)

Solicitation Number W9128F25B0004

Saint Vrain Creek Flood Risk Reduction Project Longmont, Colorado

September 2024

US Army Corps of Engineers Omaha District

This page was intentionally left blank for duplex printing.

Flood Risk Reduction Project, St Vrain Creek, Longmont, CO SVC01

PROJECT TABLE OF CONTENTS

DI VI SI ON 01 - GENERAL REQUI REMENTS

01 12 00 CONSTRUCTION GENERAL

01 20 00 PRICE AND PAYMENT PROCEDURES

01 30 00.24 OTHER ADMINISTRATIVE AND SPECIAL REQUIREMENTS

01 32 01.00 10 PROJECT SCHEDULE

01 33 00 SUBMITTAL PROCEDURES

01 35 26 GOVERNMENTAL SAFETY REQUIREMENTS

01 41 26.08 24 TEMPORARY STORMWATER POLLUTION, EROSION, AND SEDIMENT

CONTROL

01 45 00 QUALITY CONTROL

01 45 00.15 10 RESIDENT MANAGEMENT SYSTEM CONTRACTOR MODE (RMS CM)

01 45 35 SPECIAL INSPECTIONS

01 57 20.00 10 ENVIRONMENTAL PROTECTION

01 78 23 OPERATION AND MAINTENANCE DATA

01 78 39.00 24 AS-BUILT DRAWINGS

01 80 00 AS-BUILT SURVEYS

DI VI SI ON 02 - EXI STI NG CONDI TI ONS

02 32 13 EXISTING SUBSURFACE CONDITIONS

DI VI SI ON 03 - CONCRETE

03 30 00 CAST-IN-PLACE CONCRETE

DI VI SI ON 04 - MASONRY

04 20 00 UNIT MASONRY

DI VI SI ON 05 - METALS

05 21 00 STEEL JOIST FRAMING

05 30 00 STEEL DECKS

DI VI SI ON 07 - THERMAL AND MOI STURE PROTECTI ON

07 21 13 BOARD AND BLOCK INSULATION

07 22 00 ROOF AND DECK INSULATION

07 27 10.00 10 BUILDING AIR BARRIER SYSTEM

07 27 19.01 SELF-ADHERING AIR BARRIERS

07 27 26 FLUID-APPLIED MEMBRANE AIR BARRIERS

07 27 36 SPRAY FOAM AIR BARRIERS

07 60 00 FLASHING AND SHEET METAL

07 61 14.00 20 STEEL STANDING SEAM ROOFING

07 92 00 JOINT SEALANTS

DI VI SI ON 08 - OPENI NGS

08 11 13 STEEL DOORS AND FRAMES

08 71 00 DOOR HARDWARE

08 91 00 METAL WALL LOUVERS

DI VI SI ON 09 - FI NI SHES

09 22 00 SUPPORTS FOR PLASTER AND GYPSUM BOARD

09 29 00 GYPSUM BOARD

PROJECT TABLE OF CONTENTS Page 1

09 90 00 PAINTS AND COATINGS

DI VI SI ON 23 - HEATI NG, VENTI LATI NG, AND AI R CONDI TI ONI NG ( HVAC)

23 30 00 IRRIGATION PUMP STATION HEATING AND VENTILATION SYSTEMS

DI VI SI ON 26 - ELECTRI CAL

26 20 00 INTERIOR DISTRIBUTION SYSTEM

26 29 01.00 10 ELECTRIC MOTORS, 3-PHASE VERTICAL INDUCTION TYPE

26 51 00 INTERIOR LIGHTING

DI VI SI ON 31 - EARTHWORK

31 00 00 EARTHWORK AND LEVEE CONSTRUCTION

31 05 19.13 GEOTEXTILES FOR EARTHWORK

31 11 00 CLEARING, GRUBBING, AND SELECTIVE DEMOLITION

31 41 16 METAL SHEET PILING

DI VI SI ON 32 - EXTERI OR I MPROVEMENTS

32 05 33 LANDSCAPE ESTABLISHMENT

32 31 13 CHAIN LINK FENCES AND GATES

32 84 00 IRRIGATION SYSTEM

32 92 19 SEEDING

32 93 00 EXTERIOR PLANTS

DI VI SI ON 33 - UTI LI TI ES

33 40 00 PRECAST CONCRETE WET WELL

DI VI SI ON 35 - WATERWAY AND MARI NE CONSTRUCTI ON

35 20 16.54 24 SLIDE GATES AND ACTUATORS

35 31 19 RIPRAP SLOPE PROTECTION AND OTHER AGGREGATE FILLS

35 41 00.24 24 DRAINAGE STRUCTURE

35 45 01 VERTICAL PUMPS, AXIAL-FLOW AND MIXED-FLOW IMPELLER-TYPE

-- End of Project Table of Contents --

PROJECT TABLE OF CONTENTS Page 2

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 12 00

CONSTRUCTION GENERAL

PART 1 GENERAL

1.1 PROJECT SCOPE

1.2 CONSTRUCTION RIGHT-OF-WAY

1.3 PROTECTION OF EXISTING FACILITIES AND WORKS

1.3.1 Flood Protection Works

1.4 DIVERSION AND CARE OF WATER

1.4.1 Dewatering Permit

1.4.2 Special Requirement for Saint Vrain Creek

1.4.3 Coordination with CPW

1.5 CONSTRUCTION WATER

1.6 Project Survey and Layout

1.7 DISPOSITION OF CONSTRUCTION FACILITIES

1.8 ACCESS ROADS AND HAUL ROADS

1.8.1 Access Roads

1.8.2 Haul Roads

1.8.3 Joint Use of Transportation Facilities

1.8.4 Ramps

1.8.5 Drainage

1.9 PUBLIC ROADS

1.9.1 Lane Closure

1.9.2 Traffic Control Devices

1.9.3 Temporary Traffic Control (TTC)

1.9.4 Operations

1.9.4.1 Flaggers

1.9.5 Road Closure

1.9.6 State and Federal Highways

1.9.7 State and Local Public Roads

1.9.8 City Streets

1.10 COOPERATION WITH OTHER CONTRACTORS

1.11 ORDER OF WORK

1.12 LIST OF PERMITS

1.12.1 Known Permits to be Obtained by Contractor

1.12.2 Other Permits

1.13 SUBMITTALS

1.14 PROJECT SIGN

1.15 WARRANTY OF CONSTRUCTION (MAR 1994)

1.16 ACCOMMODATIONS FOR GOVERNMENT PERSONNEL

1.17 TELEPHONE/INTERNET

1.18 PORTABLE TOILETS

1.19 SITE SECURITY

1.20 FEDERAL HOLIDAYS AND WORKING HOURS

PART 2 NOT USED

PART 3 NOT USED

SECTION 01 12 00 Page 1

-- End of Section Table of Contents --

SECTION 01 12 00 Page 2

SECTION 01 12 00

CONSTRUCTION GENERAL

PART 1 GENERAL

Attachments: Standard Sign Details

1.1 PROJECT SCOPE

The work in this project primarily includes improvements to the Saint Vrain Creek channel to increase the overall flood conveyance which shall reduce flooding risk to adjacent properties and to enhance the asthetic, recreational, and environmental conditions along the creek corridor. Work relating to channel grading, recreational trail construction, and irrigation system installation shall tie into similar work, by others, upstream and downstream of the project site. The work covered in this section is outlined as a statement of construction requirements common to all the work. Specific requirements for materials and installations are provided under the Technical Sections herewith. Major work items required by the Contract Documents are summarized below, but this summary is not intended to be a complete listing of all required work. No claims for extras shall be made on account of items presumed to have been omitted from this section.

a. Approximately 2000 linear feet of channel and overbank grading including clearing and grubbing, placement of riprap for bank stabilization, stockpiling onsite and hauling off of excavated materials, and access ramps for construction activities.

b. Approximatly 1000 linear feet of new levee construction between St Vrain Creek and Izaak Walton Pond including placement of underwater fill and impervious levee fill, sheetpile cutoff wall installation, and placement of riprap for bank stabilization.

c. Excavation and hauling of material from Dry Creek Community Park for use as levee fill and site restoration of the park with excess material from creek excavation.

d. Construction of a new 135-ft long Drainage Structure through the new levee embankment including two gatewell structures, headwalls at the inlet and outlet, and a drainage filter layer around the culvert pipe.

e. Installation of a concrete headwall at the outfall into the creek channel of an existing 12-inch plastic drainage pipe.

f. Construction and removal of a Ring Levee around the new drainage structure location.

g. Removal of existing features such as concrete trail, irrigation lines and pumps, abandoned sanitary sewer, culverts through the existing Izaak Walton levee, fences, park features, and concrete rubble.

h. Tree removal and preservation as designated on Drawings.

SECTION 01 12 00 Page 3

i. Approximatly 1350 linear feet of concrete trail construction.

j. Topsoil stripping, stockpiling, ammending with compost, and placing.

k. Construction of temporary fencing for site security and new permanent fencing along the project boundary as shown on the Contract Drawings.

l. Landscaping and revegetation as shown on the Drawings.

m. Construction of a new irrigation pumphouse with intake pipe from Izaak Walton Pond, and making connections to exisitng irrigation lines, electrical source, and control systems.

n. Design and installation of a new irrigation layout plan for establishment of permanent vegetation within the St Vrain Creek channel between Sunset St and Boston Ave.

o. Design and implementation for water control during construction and stormwater pollution, erosion, and sediment control measures.

p. Performing as-built surveys, and preparing as-built drawings of all project features.

1.2 CONSTRUCTION RIGHT-OF-WAY

The Contractor will be assigned working areas or working right-of-way limits for use in the prosecution of work under this contract, subject to the SECTION 00 72 00, GENERAL CONDITIONS (CONTRACT CLAUSES) clause entitled "Operations and Storage Areas."

1.3 PROTECTION OF EXISTING FACILITIES AND WORKS

The Contractor shall be responsible for the protection of the work area from damage and upon completion of the work shall leave existing works in a condition equal to that which existed when the work started. Prior to work commencement, provide continuous color audio-video tape recording taken along the entire length of the project work sites, including staging areas, borrow sites, haul roads and access routes, to serve as a record of pre-construction conditions. All work, storage of materials, and construction plant shall be kept within the limits of the areas assigned. Prior to construction operations, the Contractor shall confer with the Contracting Officer's representative to determine the proximity of any possible under-ground obstructions, pipe or equipment which could be damaged as a result of construction operations.

Existing utility lines that are shown on the drawings or the locations are otherwise made known to the Contractor shall be protected from damage, and if damaged, shall be repaired by the Contractor at no additional expense to the Government. In the event that the Contractor damages any existing utility lines that are not shown or the locations of which have not been made known to the Contractor, the Contractor shall immediately notify the Contracting Officer. The Contracting Officer will review the information and discuss with the Contractor how to proceed. The Contractor will be responsible for the protection of structures from any structural damage during the construction operations. Roads and surfaces shall be protected from damage by the work or if damaged shall be repaired with equal

SECTION 01 12 00 Page 4 materials at no additional expense to the Government. At all times the plant and work areas shall be kept in a condition conducive to safety of workmen and the public and neat in appearance. Waste or surplus materials shall not be allowed to accumulate in the construction areas.

1.3.1 Flood Protection Works

In all cases where materials in the existing flood protection works are used or connected with the construction of new work under this contract, the work shall be so planned and executed that the new work shall be completed to provide protection equivalent to the existing protection as the existing protection is weakened or removed. These operating restrictions shall be followed in order that the new work may be tied in, or connected promptly, by the Contractor, with the existing facilities so as to furnish a continuous service in an emergency. These ties or connections shall be made during periods of suspended construction operations and the Contractor shall leave incompleted pipe outlets and other structures in such conditions as to not interfere with the natural drainage from areas served by these pipes or structures.

1.4 DIVERSION AND CARE OF WATER

Full responsibility for the diversion and care of water from whatever source, including direct rainfall, surface runoff, groundwater, and sources outside of the construction area shall be borne by the Contractor until completion of work under this contract. The Contractor shall make the needed investigation and determination of existing and anticipated conditions concerning care of water. Plans for diversion and care of water during construction shall be submitted, within 10 calendar days after receipt of Notice to Proceed, for the approval of the Contracting Officer and shall show location, material and method for dewatering the work area and disposal of the water. The work area shall be unwatered and maintained in a "dry" condition to the extent practicable. Excavations and open pits shall be kept free of standing water due to rainfall, surface runoff, or groundwater. The groundwater elevation in areas to recieve impervious (clay) fill shall be maintained no higher than 2 feet below the ground surface prior to fill placement. Areas where new structures are to be located shall be kept dry until the concrete slabs and walls have been satisfactorily placed and cured in an approved manner.

Diversion of the water shall be accomplished without additional disturbance of in-place bank material beyond the limits necessary for placement of the structures. All temporary stream diversions and temporary stream crossings shall meet the requirements and design criteria of the Urban Storm Drainage Critera Manual published by the Urban Drainage Flood Control District (now known as Mile High Flood Control District).

1.4.1 Dewatering Permit

Dewatering excavations to surface waterways requires a Colorado Department of Public Health and Environment (CDPHE) Dewatering Permit. A Construction Dewatering Permit from CDPHE may be required but it is the responsibility of the Contractor to determine if a permit is required based on their means and methods.

To prevent project delays, it is recommended that the Contractor apply for a Construction Dewatering permit with the State of Colorado as soon as the Project is awarded. Approval of a Construction Dewatering Permit may take at least 30 days after the application is received. Application is to be made to the CDPHE with permit fees paid by the Contractor. Contact CDPHE’s

SECTION 01 12 00 Page 5 website (http://www.cdphe.state.co.us/permits.html) for more information.

1.4.2 Special Requirement for Saint Vrain Creek

Saint Vrain Creek shall remain usable for water delivery throughout the construction period. Construction of in-channel improvements shall be performed while maintaining this functional water supply. Minimum flows shall be maintained in Saint Vrain Creek.

1.4.3 Coordination with CPW

Notify the COR and the City of Longmont who will then notify Colorado Parks and Wildlife (CPW) at least 14 days prior to dewatering any fully contained construction area planned for complete dewatering within the stream channel in order to salvage aquatic species.

1.5 CONSTRUCTION WATER

The contractor shall obtain a Temporary Water Use Permit from the City of Longmont and comply with all City requirements, rules, and regulations regarding obtaining and use of potable water. The contractor is responsible for payment of any fees. More information can be found at the following website:

https://www.longmontcolorado.gov/departments/departments-n-z/ planning-and-development-services/development-services/permits/ temporary-water-use-permit

1.6 Project Survey and Layout

In addition to the requirements of FAR 52.236-17 Layout of Work, the Contractor shall provide a land surveyor licensed in the State of Colorado to check initial project control, and to provide and set hubs for project construction. The Contractor shall use (and reference in all as-built data) project stationing as described on the contract drawings. In addition, a licensed land surveyor shall provide final project survey of the constructed levee and channel (to include major breakpoints, profile, top of levee, riverward and landward levee toes, etc.) prior to placement of surfacing for government review and approval. If applicable a licensed land surveyor shall also provide, set and verify as built condition of major flood control structures/features, i.e. flood walls, drainage structures, culverts, wells, etc. These surveys shall provide and verify both horizontal and vertical project control. This survey shall be used for final as-built embankment profile and cross section, and major flood control structure records, and recorded on the as-built condition in accordance with SECTION 01 78 39.00 24, AS-BUILT DRAWINGS.

Any disturbance to existing land survey monuments, control points, or property corners shall be reset by a Professional Land Surveyor licensed in the State of Colorado at no additional cost to the project.

The Contractor may utilize their own quality control personnel to provide interim surveys for quantity determination for payment in accordance with paragraph entitled Quantity Surveys (Apr 1984).

1.7 DISPOSITION OF CONSTRUCTION FACILITIES

All buildings and facilities constructed by the Contractor shall be maintained in a satisfactory condition with strict observance of the rules

SECTION 01 12 00 Page 6 of sanitation, safety and order as may be established by the Contracting Officer. Prior to final payment under the contract, all buildings and facilities constructed by the Contractor for the Contractor's use shall be removed from the site by the Contractor.

1.8 ACCESS ROADS AND HAUL ROADS

1.8.1 Access Roads

Access roads as required for the prosecution of the work shall be maintained (including sprinkling for dust control, safety personnel, and traffic control) within the work areas assigned to the Contractor.

Consideration shall be given to the avoidance of interference with others, safety and frequency of traffic, subject to review and approval prior to construction. Access road areas shall be restored to their original or suitable condition upon completion of this contract. The Contractor shall be responsible for repair of damage to existing roads caused by the Contractor's operation.

1.8.2 Haul Roads

The Contractor shall construct haul roads as may be necessary for the conduct of the work without additional cost to the Government. The Contractor shall arrange the hauling operations so as to cause a minimum interference with traffic and shall develop Temporary Traffic Control (TTC) plan(s) and furnish all necessary traffic control devices and personnel as required to avoid additional hazards to the public. The Contractor shall perform routine day and night inspections of TTC elements as required by MUTCD and maintain all furnished traffic control devices at their expense and without additional cost to the Government. Lines, grades and widths for haul roads, shall be selected to fulfill the requirements for safe and efficient hauling operations and shall be approved by the Contracting Officer prior to construction. Haul roads shall have ample width to provide safety. Preference shall be given to one-way haul roads when these are feasible. All roads shall be maintained in original as-built condition during all periods of their use. Roads shall be sprinkled whenever, in the opinion of the Contracting Officer, control of dust is necessary to insure safe movements of construction traffic. Upon completion of work under this contract, roads shall be disposed of as directed by the Contracting Officer. All traffic control devices, culverts, guards, fences and other improvements on roads constructed for the Contractor's convenience and operations shall be removed from the project site and shall remain property of the Contractor. Use and repair of existing roads and bridges shall be subject to the requirements of local authorities. Prior to start of hauling operations on public roads, the Contractor shall furnish written evidence to the Contracting Officer that an agreement has been consummated with State and County officials on the use of public roads and bridges. Such agreements shall clearly relieve the Government of any responsibility for damage resulting from hauling across or on these roads.

1.8.3 Joint Use of Transportation Facilities

The Contractor may use jointly with Contractors and others, existing access and haul roads constructed by the Government or by others unless otherwise specified. The Contractor shall not use Boston Ave creek access. This access shall be designated for the Boston Ave Bridge contractor only. Unless otherwise specifically authorized in writing, the Contractor will not be granted exclusive use of any access or haul road

SECTION 01 12 00 Page 7 whether it be an existing road or one constructed by the Contractor.

However, the use by others of roads constructed by or assigned to the Contractor primarily for the Contractor's use will be limited by the Contracting Officer to the minimum considered consistent with efficient prosecution of the work under this and other contracts in force.

Maintenance of jointly used facilities shall be shared in proportion to use. In the event of a disagreement between this Contractor and others as to the use of any road, the decision of the Contracting Officer shall be final. The Contractor shall not obstruct any existing road on the land controlled by the Government.

1.8.4 Ramps

Ramps shall be provided and maintained for access of hauling equipment into excavation and waste areas. Locations, grades and width are subject to review and approval by the Contracting Officer prior to construction.

1.8.5 Drainage

The Contractor shall provide and maintain ditches, dikes and other facilities within and adjacent to the work areas to direct the surface and subsurface flow of water away from abutting private property and work in place or under construction by this and other contracts. The design, location, type and size of drainage facilities are subject to review and approval by the Contracting Officer prior to construction.

1.9 PUBLIC ROADS

1.9.1 Lane Closure

One lane of the road must remain open at all times. The Contractor shall determine an appropriate method for the specific Temporary Traffic Control (TTC) zone one-lane, two-ways traffic control method in accordance with MUTCD requirements. The Contractor shall furnish all necessary personnel and traffic control devices, perform routine day and night inspections of TTC elements, and maintain all furnished traffic control devices to provide safety for motorists, bicyclists, pedestrians, workers, enforcement/emergency officials, and equipment as required by MUTCD. The Contractor is required to coordinate all road/lane closures with the City of Longmont and shall apply for and obtain a City of Longmont "Work in the Right-of-Way" permit for all work that will necessitate the closure of City roads, sidewalks, or greenway trails.

1.9.2 Traffic Control Devices

All traffic control devices (signs, arrow boards, barricades, lighting, etc.

) by the Contractor, must conform with the U.S. Department of Transportation, Federal Highway Administration, Manual on Uniform Traffic Control Devices.

1.9.3 Temporary Traffic Control (TTC)

The Contractor shall be responsible for the safe control of traffic on all haul and access roads used primarily for the work under these specifications and at their crossings with roads used by others. The Contractor shall, at the Contractor's own expense, furnish all personnel, and traffic control devices necessary for the safe movement of all road users through or around Temporary Traffic Control zone. Traffic control plans, including a listing of equipment and its employment, shall be

SECTION 01 12 00 Page 8 submitted for review and approval prior to construction.

1.9.4 Operations

When operations are being conducted near a U. S. or State Highway or when construction equipment is being used on or adjacent to such highway, the Contractor shall furnish all necessary traffic control devices and personnel to provide safe and effective movement of all road users through or around Temporary Traffic Control zone as required by MUTCD. All required state and/or local permits shall be obtained at the Contractor's expense in advance and shall be provided to the COR. The highways and streets shall be kept open at all times.

1.9.4.1 Flaggers

The Contractor shall provide flaggers when:

a) Construction equipment and/or vehicles are blocking the roadway making it difficult for vehicles to pass or see or due to terrain.

b) One-way traffic is required thru a construction zone.

c) Trucks are pulling onto and/or off of a roadway or operating at a reduced speed causing a hazardous situation for drivers.

d) Anytime the Contractor feels that road users are at risk due to Construction activity.

Flagger shall have all qualifications, high-visibility safety apparel, and appropriate hand-signaling devices in accordance with MUTCD requirements.

The flagger shall be properly trained as required by the state. The Contractor shall furnish all necessary traffic control devices to establish appropriate TTC zone when the Flagger Control is utilized.

1.9.5 Road Closure

At each location designated by the Contracting Officer and where safe operation requires the closing of roads, streets or other travel arteries leading to the work under this contract, the Contractor shall furnish all appropriate traffic control devices to provide safety for motorists, bicyclists, pedestrians, workers, enforcement/emergency officials, and equipment during construction as required by MUTCD. Arrangements for closure of roads, streets or other travel arteries shall be made by the Contractor with local State, County or City officials. The Contractor is required to coordinate all road/lane closures with the City of Longmont and shall apply for and obtain a City of Longmont "Work in the Right-of-Way" permit for all work that will necessitate the closure of City roads, sidewalks, or greenway trails. The Contractor shall furnish a copy of the agreement and approved Temporary Traffic Control plans to the Contracting Officer prior to closure.

1.9.6 State and Federal Highways

Where the Contractor hauls across or on State or Federal highways, the Contractor shall enter into all agreements with the State Highway Commission and shall comply with any restrictions they may impose relative to load limits, care of traffic and cleanup. Such agreements shall clearly relieve the Government of any responsibility for damages resulting from hauling across or on State highways. Copies of such agreements shall be furnished to the Contracting Officer before the Contractor begins hauling on these highways.

SECTION 01 12 00 Page 9

1.9.7 State and Local Public Roads

Prior to start of hauling operations on any public roads, the Contractor shall furnish evidence to the Contracting Officer that an agreement has been consummated with Local, State, and County officials on the use of public roads and bridges. Such agreements shall clearly relieve the Government of any responsibility for damage resulting from hauling across or on these roads.

1.9.8 City Streets

Where the Contractor intends to cross or to use city streets for haul roads the Contractor shall apply for and obtain a "Work in the Right-of-Way" permit from the City of Longmont and shall comply with any restrictions the City may impose relative to load limits, care of traffic, and cleanup. Such agreements shall clearly relieve the Government of any responsibility for damage resulting from hauling across or on these roads.

A copy of all such agreements shall be furnished to the Contracting Officer before the Contractor begins hauling on city streets.

1.10 COOPERATION WITH OTHER CONTRACTORS

Work by others for the removal and replacement of the Boston Avenue Bridge and associated channel grading and other work may affect the work required by this contract. The Contractor shall cooperate and coordinate work with that of others (public or private) working in the area during the life of this contract. The Contractor shall coordinate work with others to avoid undue interference and shall conduct operations, other than approved required access, within the limits of the assigned construction area or construction right-of-way limits. The Contractor shall cooperate with others as necessary in the interest of timely completion of all work and in the event of disagreement the decision of the Contracting Officer shall be final.

1.11 ORDER OF WORK

The sequence of operations shall be maintained so that the maximum amount of work may be done under favorable working conditions in accordance with the completion time set forth in Section 00 73 00 SPECIAL CONTRACT REQUIREMENTS. The Contractor shall submit for approval, within 15 days after receipt of notice to proceed a narrative description of the proposed method of operation.

1.12 LIST OF PERMITS

1.12.1 Known Permits to be Obtained by Contractor

This Section provides the known list of required permits for the Work under the Contract Documents. Completeness of the list is not guaranteed by the Government. The absence of information does not relieve Contractor of responsibility for determining and verifying the extent of permits required and for obtaining permits. The contractor shall obtain and comply with all federal, state, regional, and local permits required for the execution of the Work, as indicated. Furnish copies of permits obtained by the Contractor to the Contracting Officer.

SECTION 01 12 00 Page 10

PERMITTING

AUTHORITY

PERMI T NAME APPROXI MATE AGENCY

REVI EW TI ME

PERMITEE

Colorado Department of Public Health and Safety

(CDPHE)

General Construction Permit

- Land Development Projects (APEN General Permit) (if required)

Up to 2 months Contractor

Notification of Regulated Asbestos Contaminated Soil (RACS) Disturbance (if required)

10 days if only excavating as needed or 45 days if remediation plan

Contractor

Construction Dewatering Permit

30 days Contractor

Construction Stormwater General Permit

10 days Contractor and City of Longmont

City of Longmont

Building Permit 2 to 4 weeks Contractor

Electric Service Application

2 to 4 weeks Contractor

Work in the Right-of-way Permit

5 days Contractor

Temporary Water Use Permit 2 days Contractor

Stormwater Construction Activity Permit

4 weeks Contractor

Boulder County Access Permit (if required) 5 days Contractor

Oversize/Overweight Vehicle Permit (if required)

10 days Contractor

1.12.2 Other Permits

Permits listed in this section have been or are in the process of being obtained by USACE and/or the Project Sponsor (City of Longmont). More information is available upon request.

PERMI TTI NG AUTHORI TY PERMI T NAME PERMITEE

U.S. Environmental Protection Agency

(EPA)

National Environmental Policy Act (NEPA) Environmental Assessment (EA) and Finding of No Significant Impact

(FONSI)

USACE

U.S. Army Corps of Engineers (USACE)

Clean Water Act Section 404 Permit USACE

SECTION 01 12 00 Page 11

PERMI TTI NG AUTHORI TY PERMI T NAME PERMITEE

Colorado Department of Public Health and Safety (CDPHE)

Clean Water Act Section 401 Water Quality Certification

USACE

U.S. Fish and Wildlife Service

(USFWS)

Endangered Species Act (ESA) Section 7 Consultation

USACE

Colorado State Historic Preservation Office

(SHPO)

National Historic Preservation Act (NHPA) Section 106 Consultation

USACE

Colorado Parks and Wildlife (CPW)

Avian Protection Plan City of Longmont

Senate Bill (SB) 40 Wildlife Certification

City of Longmont

City of Longmont Floodplain Development Permit City of Longmont

Permanent Stormwater Control Permit

City of Longmont

1.13 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Proposed Methods of Operation; G-AO

Construction Right-of-Way

(Right-of-Way Agreements)

State and Federal Highways

(Agreements for hauling on highways)

State and Local Public Roads

(Agreements for hauling on roads)

Temporary Traffic Control (TTC); G, AO

SD-02 Shop Drawings

Care of Water; G-AO

SD-11 Closeout Submittals

Warranty of Construction

(List of warranties with copy of each)

SECTION 01 12 00 Page 12

1.14 PROJECT SIGN

The Contractor shall provide new project sign(s) constructed in accordance with Standard Sign Details bound herein. The sign shall be erected at the project site by the Contractor at the location determined by the Contracting Officer. The project sign shall remain the property of the Contractor and upon completion of the contract, shall be removed from the premises by the Contractor. No separate payment will be made for the sign.

1.15 WARRANTY OF CONSTRUCTION (MAR 1994)

(a) In addition to any other warranties in this contract, the Contractor warrants, except as provided in paragraph (i) of this clause, that work performed under this contract conforms to the contract requirements and is free of any defect in equipment, material, or design furnished, or workmanship performed by the Contractor or any subcontractor or supplier at any tier.

(b) This warranty shall continue for a period of 1 year from the date of final acceptance of the work. If the Government takes possession of any part of the work before final acceptance, this warranty shall continue for a period of 1 year from the date the Government takes possession.

(c) The Contractor shall remedy at the Contractor's expense any failure to conform, or any defect. In addition, the Contractor shall remedy at the Contractor's expense any damage to Government-owned or controlled real or personal property, when that damage is the result of--

(1) The Contractor's failure to conform to contract requirements; or

(2) Any defect of equipment, material, workmanship, or design furnished.

(d) The Contractor shall restore any work damaged in fulfilling the terms and conditions of this clause. The Contractor's warranty with respect to work repaired or replaced will run for 1 year from the date of repair or replacement.

(e) The Contracting Officer shall notify the Contractor, in writing, within a reasonable time after the discovery of any failure, defect, or damage.

(f) If the Contractor fails to remedy any failure, defect, or damage within a reasonable time after receipt of notice, the Government shall have the right to replace, repair, or otherwise remedy the failure, defect, or damage at the Contractor's expense.

(g) With respect to all warranties, express or implied, from subcontractors, manufacturers, or suppliers for work performed and materials furnished under this contract, the Contractor shall--

(1) Obtain all warranties that would be given in normal commercial practice;

(2) Require all warranties to be executed, in writing, for the benefit of the Government, if directed by the Contracting Officer; and

SECTION 01 12 00 Page 13

(3) Enforce all warranties for the benefit of the Government, if directed by the Contracting Officer.

(h) In the event the Contractor's warranty under paragraph (b) of this clause has expired, the Government may bring suit at its expense to enforce a subcontractor's, manufacturer's, or supplier's warranty.

(i) Unless a defect is caused by the negligence of the Contractor or subcontractor or supplier at any tier, the Contractor shall not be liable for the repair of any defects of material or design furnished by the Government nor for the repair of any damage that results from any defect in Government-furnished material or design.

(j) This warranty shall not limit the Government's rights under the Inspection and Acceptance clause of this contract with respect to latent defects, gross mistakes, or fraud. (FAR 52.246-21)

1.16 ACCOMMODATIONS FOR GOVERNMENT PERSONNEL

The Contractor shall furnish and maintain an office type trailer for the use of Government inspectors. The trailer shall have a minimum floor space of 200 sq. ft. The trailer shall meet the following requirements:

Sufficient blocks to steady the trailer when spotted for use. An entrance near each end with each entrance equipped with a door with fixed window and screen door. Approximately 40 sq. ft. ventilating type of window space with all windows having louvered screens or screens and awnings or venetian blinds. Floors, ceiling and walls to be insulated. Ceiling vents with at least one having an exhaust fan. Varnished plywood interior. Inlaid linoleum covered floors. Ceiling light operated from switch at door. Fluorescent 2-40 watt tube fixtures at each end of trailer. Double electric outlets located near ends of trailer with one exterior weatherproof outlet. Electric 5-gal. water cooler with two plastic bottles. Forced-air central oil or gas heating unit with minimum capacity of 15,000 B.t.u. per hour, thermostatic controlled.

Thermostatically controlled 12,000 B.t.u. air conditioning unit. Wardrobe of approximately 48 inch length. Kneehole desk 30" x 32" x 5'0", with 3 drawers on each side of the kneehole; drafting stool, swivel chair with arms, 4 straight-back or folding chairs. Drafting table on shelf with built-in cabinets below. Plan rack capable of holding approximately 75 standard drawings. Five lb. CO2 fire extinguishers. Exterior toilet facilities. The trailer shall be located at the direction of the Contracting Officer . The Contractor shall provide accommodations, janitor service, fuel for light plant and heating facilities, electricity, telephone and water, all at no cost to the Government, except that the Contractor will not be liable for Government long-distance calls. Upon completion of the contract, the trailer shall remain the property of the Contractor and shall be removed from the site of the work.

1.17 TELEPHONE/INTERNET

The Contractor is responsible for arranging telephone/Internet service for the Contractor's trailer through the local utility company.

1.18 PORTABLE TOILETS

Toilet facilities will not be available for Contractor's use. The Contractor shall provide and maintain portable toilets for use by the Contractor's staff and Government staff. Toilet(s) shall be placed at the location directed by the Contracting Officer. To prevent overturning

SECTION 01 12 00 Page 14 by high winds, all portable toilets shall be anchored down.

1.19 SITE SECURITY

The contractor shall install the type(s) of temporary fencing to the limits shown on the contract drawings in order to ensure a safe work site and restrict unauthorized personnel. The contractor shall continuously monitor fencing to ensure that it is in good condition and properly installed to serve its intended purpose during the full period of construction. Remove all temporary security fencing upon completion of the contract or as directed by the COR.

Gates in security fencing shall be installed where indicated on the contract drawings and/or where it has been deemed neccessary to provide access for approved construction activities. Gates shall contain appropriate signage to warn of ongoing construction activities. Anytime the Contractor places locks on gates at the project site, they shall provide at least one copy of the key/combination to the Contracting Officer's Representative and at least one copy to the City of Longmont's representative.

1.20 FEDERAL HOLIDAYS AND WORKING HOURS

The Contractor will have access to the job site per City of Longmony Municipal Code and Noise Ordinances from 0700 to 1900 hours Monday through Friday, excluding any federally or locally recognized holidays or observance days. The Contractor shall plan all work accordingly. These hours will be strictly adhered to unless the Government determines work outside this time is beneficial to the Government and City or a bilateral modification for extended working hours is executed.

The following legal holidays are observed by the government:

New Year's Day 1 January Martin Luther King's Birthday Third Monday in January President's Day Third Monday in February Memorial Day Last Monday in May Juneteenth 19 June Independence Day 4 July Labor Day First Monday in September Columbus Day Second Monday in October Veterans Day 11 November Thanksgiving Day Fourth Thursday in November Day after Thanksgiving (City of Longmont only) Christmas Day 25 December

If the wage determination has a discrepancy with the above list of observed Federal holidays, then the wage determination takes precedence.

PART 2 NOT USED

PART 3 NOT USED

-- End of Section --

SECTION 01 12 00 Page 15

This page was intentionally left blank for duplex printing.

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 20 00

PRICE AND PAYMENT PROCEDURES

PART 1 GENERAL

1.1 GENERAL

1.2 CONTRACT COST BREAKDOWN

1.3 UNITS OF MEASUREMENT

1.4 SINGLE JOB PAYMENT ITEMS

1.5 UNIT PRICE PAYMENT ITEMS

1.6 PAYMENT ITEMS

1.6.1 BID ITEM 1: Mobilization / Demobilization

1.6.1.1 Work Included

1.6.1.2 Payment

1.6.2 BID ITEM 2: Clearing and Grubbing

1.6.2.1 Work Included

1.6.2.2 Payment

1.6.3 BID ITEM 3: Care and Control of Water

1.6.3.1 Work Included

1.6.3.2 Payment

1.6.4 BID ITEM 4: Temporary Fencing

1.6.4.1 Work Included

1.6.4.2 Payment

1.6.5 BID ITEM 5: Remove and Replace Permanent Fencing

1.6.5.1 Work Included

1.6.5.2 Payment

1.6.6 BID ITEM 6: Tree Removal

1.6.6.1 Work Included

1.6.6.2 Payment

1.6.7 BID ITEM 7: Remove Abandoned Sanitary Sewer

1.6.7.1 Work Included

1.6.7.2 Payment

1.6.8 BID ITEM 8: Remove Existing Levee Culverts

1.6.8.1 Work Included

1.6.8.2 Payment

1.6.9 BID ITEM 9: REMOVED

1.6.10 BID ITEM 10: Remove Concrete Rubble and Riprap

1.6.10.1 Work Included

1.6.10.2 Payment

1.6.11 BID ITEM 11: Topsoil - Strip, Amend, Replace (6-inch depth)

1.6.11.1 Work Included

1.6.11.2 Payment

1.6.12 BID ITEM 12: Soil Excavation and Disposal at Rivertown

1.6.12.1 Work Included

1.6.12.2 Payment

1.6.13 BID ITEM 13: Soil Excavation and Disposal at DCCP

1.6.13.1 Work Included

1.6.13.2 Payment

1.6.14 BID ITEM 14: Rock Excavation and Disposal at Tull

SECTION 01 20 00 Page 1

1.6.14.1 Work Included

1.6.14.2 Payment

1.6.15 BID ITEM 15: Soil Excavation and Reuse as Fill

1.6.15.1 Work Included

1.6.15.2 Payment

1.6.16 BID ITEM 16: Borrow Site Excavation, Hauling, and Placement

1.6.16.1 Work Included

1.6.16.2 Payment

1.6.17 BID ITEM 17: River Cobble Channel Lining

1.6.17.1 Work Included

1.6.17.2 Payment

1.6.18 BID ITEM 18: Type "M" Soil-Riprap

1.6.18.1 Work Included

1.6.18.2 Payment

1.6.19 BID ITEM 19: Type "H" Soil-Riprap

1.6.19.1 Work Included

1.6.19.2 Payment

1.6.20 BID ITEM 20: Type "H" Void-Filled Riprap

1.6.20.1 Work Included

1.6.20.2 Payment

1.6.21 BID ITEM 21: Landscape Boulders (Grade Transition Structure)

1.6.21.1 Work Included

1.6.21.2 Payment

1.6.22 BID ITEM 22: Underwater Fill

1.6.22.1 Work Included

1.6.22.2 Payment

1.6.23 BID ITEM 23: Sheetpile Installation

1.6.23.1 Work Included

1.6.23.2 Payment

1.6.24 BID ITEM 24: Sheetpile Removal (Temporary Ring Levee)

1.6.24.1 Work Included

1.6.24.2 Payment

1.6.25 BID ITEM 25: 18" RCP Drainage Structure (Drainage Outfall 4)

1.6.25.1 Work Included

1.6.25.2 Payment

1.6.26 BID ITEM 26: Install Headwall (Drainage Outfall 2)

1.6.26.1 Work Included

1.6.26.2 Payment

1.6.27 BID ITEM 27: Trail Construction

1.6.27.1 Work Included

1.6.27.2 Payment

1.6.28 BID ITEM 28: Seeding and Landscape Plantings

1.6.28.1 Work Included

1.6.28.2 Payment

1.6.29 BID ITEM 29: Irrigation Pumphouse

1.6.29.1 Work Included

1.6.29.2 Payment

1.6.30 BID ITEM 30: Design and Installation of Irrigation System

1.6.30.1 Work Included

1.6.30.2 Payment

1.6.31 BID ITEM 31: All Remaining Work

1.6.31.1 Work Included

1.6.31.2 Payment

1.6.32 OPTION 1: Remove Grade Transition Riprap at Boston Ave

1.6.32.1 Work Included

1.6.32.2 Payment

1.6.33 OPTION 2: Relocate Staging Area

1.6.33.1 Work Included

1.6.33.2 Payment

SECTION 01 20 00 Page 2

PART 2 PRODUCTS

PART 3 EXECUTION

SECTION 01 20 00 Page 3

SECTION 01 20 00

PRICE AND PAYMENT PROCEDURES

PART 1 GENERAL

1.1 GENERAL

The general outline of the principal features of each item as listed does not in any way limit the responsibility of the Contractor for making a thorough investigation of the Contract Drawings and Specifications to determine the scope of work under the entire Contract. Payment to the Contractor of the amounts based on the quantities of work as measured in accordance with the specified methods of measurement and the prices stipulated in the accepted proposal will constitute complete compensation for all work shown on the Drawings, provided in the specifications or other Contract Documents and all costs of accepting the general risks, liabilities and obligations expressed or implied. Payment under all items shall include, but not necessarily be limited to, compensation for furnishing all supervision, labor, equipment, and materials and services, as well as performing all work required to accomplish and complete the work specified under each item and all other work required.

1.2 CONTRACT COST BREAKDOWN

The Contractor shall furnish within 30 days after the date of Notice to Proceed, and prior to the submission of its first partial payment estimate, a breakdown of its single job pay item or items which will be reviewed by the Contracting Officer as to propriety of distribution of the total cost to the various accounts. Any unbalanced items as between early and late payment items or other discrepancies will be revised by the Contracting Officer to agree with a reasonable cost of the work included in the various items. This Contract cost breakdown will then be utilized as the basis for progress payments to the Contractor.

1.3 UNITS OF MEASUREMENT

Units of measure for each item shall be as shown on BID SCHEDULE, unless specified otherwise.

1.4 SINGLE JOB PAYMENT ITEMS

Payment items for the work of this Contract for which Contract job payments will be made are listed in the SCHEDULE and described below. All costs for items of work, which are not specifically mentioned to be included in a particular job or unit price payment item, are included in the listed job item most closely associated with the work involved. The job price and payment made for each item listed constitutes full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for which separate payment is not otherwise provided.

SECTION 01 20 00 Page 4

1.5 UNIT PRICE PAYMENT ITEMS

Payment items for the work of this Contract on which the Contract unit price payments will be made are listed in the SCHEDULE and described below. The unit price and payment made for each item listed constitutes full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for each of the unit price items.

1.6 PAYMENT ITEMS

1.6.1 BID ITEM 1: Mobilization / Demobilization

1.6.1.1 Work Included

Mobilization shall include all activities and associated costs for transportation of Contractor's personnel, equipment, and operating supplies to the site; establishment of offices, buildings, and other necessary general facilities for the Contractor's operations at the site;

premiums paid for performance and payment bonds including coinsurance and reinsurance agreements as applicable.

Demobilization shall include all activities and costs for transportation of personnel, equipment, and supplies not required or included in the contract from the site; including the disassembly, removal, and site cleanup of offices, buildings, and other facilities assembled on the site specifically for this contract.

1.6.1.2 Payment

Payment for this item shall be made in two installations. The first payment of 50 percent of the lump sum will be made on the first estimate following initial mobilization and initiation of construction work. The second and final payment will be made on the estimate following the substantial completion of the work.

The lump sum price bid shall not exceed 10 percent of the total contract bid amount less the bid price for “Mobilization and Demobilization” and no payment in excess of 10 percent of the total contract bid amount less the bid price for “Mobilization and Demobilization” will be made for this item.

1.6.2 BID ITEM 2: Clearing and Grubbing

1.6.2.1 Work Included

The work of this item shall include but not be limited to furnishing all labor, equipment, and materials required for all clearing, grubbing, hauling and disposal of all materials other than large, established trees (see Item 6), from the project site necessary to complete the work.

1.6.2.2 Payment

Payment shall be made on a progressive basis based on the number of acres, rounded to the nearest 0.1 acre, of clearing and grubbing work completed and approved. No payment will be made for clearing and grubbing outside of the limits of construction shown on Contract Drawings or for work required to repair damage done by the Contractor's operations.

SECTION 01 20 00 Page 5

1.6.3 BID ITEM 3: Care and Control of Water

1.6.3.1 Work Included

The work of this item shall include but not be limited to furnishing all labor, equipment, and materials required for performing all actions relating to Care of Water on the project site based on the contractor's selected means and methods for construction; designing, installing, maintaining, and removing all dewatering measures; preparation and implementation of the Stormwater Management Plan and Stormwater Pollution Control (SPC) Drawings; installing, maintaining, and removing all temporary stormwater pollution, erosion, and sediment control measures;

designing, installing, and removing all temporary stream crossings and/or stream diversions; and furnishing all labor associated with the tasks assigned to the SPC Administrator as defined in SECTION 01 41 26.08 24.

1.6.3.2 Payment

Payment will be distributed in equal monthly installments over the established Contract Time.

1.6.4 BID ITEM 4: Temporary Fencing

1.6.4.1 Work Included

The work of this item shall include but not be limited to furnishing all labor, equipment, and materials for the procurement, installation, maintenance, and removal of both plastic mesh construction fencing and temporary chainlink fencing in the areas indicated on the Contract Drawings.

1.6.4.2 Payment

Payment for this item shall be made in two installations. The first payment of 50 percent of the lump sum will be made on the estimate after installation of all required temporary fencing. The second and final payment will be made on the estimate following the removal of all temporary fencing from the project site following substantial completion of the work.

1.6.5 BID ITEM 5: Remove and Replace Permanent Fencing

1.6.5.1 Work Included

The work of this item shall include but not be limited to furnishing all labor, equipment, and materials for the removal of existing fencing and the procurement, installation, and maintenance of new fencing in the areas indicated on the Contract Drawings. This shall include all posts, wires, mesh, anchoring materials, rails, brackets, caps, and other related items.

1.6.5.2 Payment

Payment for this item shall be made in two installations. The first payment of 50 percent of the lump sum will be made on the estimate after removal of all existing fencing. The second and final payment will be made on the estimate following the installation and approval of all new fencing within/around the project site.

SECTION 01 20 00 Page 6